I have overcomed this obstacle and made a progress  in  my  implementation. Currently, I  come across a fault called  NicSettingMismatch.  the error message  shows  'the number of network adapter settings in the customization specification: 1 does not match the number of  network adpters present in the virtual machine".   Regarding  the error  message,  do  I  need to  create a  new  CustomizationSpec involving  other two adapters.  Do we  have  other less  complicated  solution  to  solve this  fault?  Thank  you .